While everyone else is rushing to convert their wallets into data, one Instructables user was converting his wallet into data storage. By taking a cheap, $12 ultra-thin USB flash drive dongle and sewing one tiny piece of Velcro, Instructables user "Activist" was able to upgrade his leather wallet into the 21st century.

The sewing bit makes the Velcro pad much more secure since you're dealing with leather, but my guess is that you could probably do alright with some strong super glue. Not everyone's got the thimble skills.